If aliens wrap their planets in potent greenhouse gases like we do, we'd be able to tell. That's according to a recent thought experiment in which scientists identified five "artificial" greenhouse ...

Could we identify an alien terraformed planet through the detection of greenhouse gases? This is what a recent study published in The Astrophysical Journal hopes to address as a team of international ...

Until someone invents warp drive, the only way we can inspect distant exoplanets is with a powerful telescope. However, even the most capable telescopes can only catch faint glimmers from exoplanets.

This story originally featured on the MIT Press Reader. Exploration, habitation, and resource extraction all carry a risk of inflicting environmental damage in space, just as they do here on Earth.

A desert moss could be the key to terraforming Mars, according to a recent study published by Chinese scientists. Due to its extraordinary resilience, Syntrichia caninervis (S. caninervis), a moss ...

"You wouldn't need extra effort to look for these technosignatures, if your telescope is already characterizing the planet for other reasons — and it would be jaw-droppingly amazing to find them." ...